Firefox: a.__shady is undefined

[malte-laukoetter]

In the newest release (1.0.2) i get the following error in firefox while in version 1.0.1 everything is working:

TypeError: a.__shady is undefined[Learn More]  webcomponents-hi-sd-ce.js:55:218
	Rb http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:55:218
	La http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:53:152
	insertBefore http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:116:445
	Xc/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:36:211
	r http://localhost:8081/bower_components/polymer/lib/mixins/element-mixin.html.js:1:2463
	_initializeProperties http://localhost:8081/bower_components/polymer/lib/mixins/element-mixin.html.js:1:3692
	_initializeProperties http://localhost:8081/bower_components/polymer/lib/legacy/legacy-element-mixin.html.js:1:761
	Polymer.PropertyAccessors</< http://localhost:8081/bower_components/polymer/lib/mixins/property-accessors.html.js:1:725
	<anonymous> http://localhost:8081/bower_components/polymer/lib/mixins/template-stamp.html.js:795:19
	le http://localhost:8081/bower_components/polymer/lib/mixins/property-effects.html.js:795:19
	v http://localhost:8081/bower_components/polymer/lib/mixins/element-mixin.html.js:795:19
	<anonymous> http://localhost:8081/bower_components/polymer/lib/mixins/gesture-event-listeners.html.js:795:19
	f http://localhost:8081/bower_components/polymer/lib/legacy/legacy-element-mixin.html.js:1:243
	m http://localhost:8081/bower_components/polymer/lib/legacy/class.html.js:795:19
	m http://localhost:8081/bower_components/polymer/lib/legacy/class.html.js:795:19
	m http://localhost:8081/bower_components/polymer/lib/legacy/class.html.js:795:19
	v.prototype.s http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:124:32
	v.prototype.c http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:123:378
	Yc/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:39:91
	_stampTemplate http://localhost:8081/bower_components/polymer/lib/mixins/template-stamp.html.js:1:2942
	_stampTemplate http://localhost:8081/bower_components/polymer/lib/mixins/property-effects.html.js:1:16143
	ready http://localhost:8081/bower_components/polymer/lib/mixins/element-mixin.html.js:1:4205
	_enableProperties http://localhost:8081/bower_components/polymer/lib/mixins/property-accessors.html.js:1:3562
	connectedCallback http://localhost:8081/bower_components/polymer/lib/mixins/element-mixin.html.js:1:4121
	v.prototype.connectedCallback http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:125:22
	v.prototype.s http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:124:407
	v.prototype.c http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:123:378
	q.prototype.j http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:128:297
	q.prototype.define/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:128:233
	q/this.g http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:41:486
	q.prototype.l/this.g/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:129:257
	d http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:164:365
	b.whenReady/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:164:482
	f/</< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:79:399
	d/</< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:79:146
	c http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:80:108
	h http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:61:356
	dispatchEvent http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:118:92
	k.prototype.g http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:90:312
	k.prototype.j/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:90:203
	l http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:81:37
	k.prototype.j http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:90:180
	d http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:87:312
	k.prototype.i/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:87:373
	b http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:88:401
	b/< http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:88:387
	c http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:80:108
	h http://localhost:8081/bower_components/webcomponentsjs/webcomponents-hi-sd-ce.js:61:356

[wlschnee]

I'm continuing to see this same issue in the newest release (1.0.3).

[fooloomanzoo]

Same issue for me in Firefox. Seems to be related to #809

[anirban-dutta]

It worked for me the preset bundled build, after disabling MINIFY for html for Firefox. Chrome it was working fine.Problem faced by me even with the Polymer 2 starter kit.
Sample:
{
"name": "bundled-es6",
"preset": "es6-bundled",
"html": {"minify": false}
}

[sorvell]

We were hoping that 1.0.3 would address this issue but apparently it has not. We'll be looking into and fixing this asap.

[firstor]

@anirban-dutta Your workaround seems work fine on my side, but not working 100% case. The problem disappeared on Firefox and Edge once I adopted your workaround, but I got another problem on IE 11. Here is the browser console outputs: (just like as #518)

SCRIPT5007: Unable to get property 'replaceChild' of undefined or null reference
SCRIPT5022: A custom element with name 'dom-module' has already been defined.
SCRIPT5022: A custom element with name 'dom-bind' has already been defined.
SCRIPT5022: A custom element with name 'dom-repeat' has already been defined.
SCRIPT5022: A custom element with name 'dom-if' has already been defined.
SCRIPT5022: A custom element with name 'array-selector' has already been defined.
SCRIPT5022: A custom element with name 'custom-style' has already been defined.
...

Do you have any idea of how to solve this problem?

[shawnd]

To add to @First87's comment, the errors related to custom elements being already defined do not appear when "bundle": false